geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Changes in blood flow of the pulmonary artery valve studied by Doppler echocardiography in patients with pulmonary hypertension


, : Changes in blood flow of the pulmonary artery valve studied by Doppler echocardiography in patients with pulmonary hypertension. Kardiologiia 29(3): 67-71

Blood flow in the vicinity of the pulmonary-arterial valve was examined in 20 normal subjects and 42 patients with pulmonary hypertension. Four major types were identified in the flow spectrum. Six flow classes were further identified on the basis of their combinations in the same patients. These classes were correlated with a number of hemodynamic parameters. They were shown to be related to systolic pulmonary-arterial blood pressure and total vascular resistance, but unrelated to diastolic and mean blood pressure in the pulmonary artery. There was no correlation with the cardiac cycle duration, ejection time, and cardiac output either, although the latter parameters differed significantly between normal subjects and patients with pulmonary hypertension. The classes identified permit a semiquantitative assessment of systolic blood pressure in the pulmonary artery and total peripheral resistance.

US$29.90

PMID: 2733341


Other references

Suchanek, B.; Kvapilik, J., 1976: Variability of milk dry matter percentage in corrected lactations. Data were obtained over 4 yr on 659 lactations. For milk production milk fat percentage, protein percentage, dry matter percentage and SNF percentage in 1st-8th lactations, the h2s estimated from dam-daughter regressions were 0.39, 0.70, 0.55, 0.6...

Prokhorov, A.V.; Hudmon, K.S.; de Moor, C.A.; Kelder, S.H.; Conroy, J.L.; Ordway, N., 2001: Nicotine dependence, withdrawal symptoms, and adolescents' readiness to quit smoking. The purpose of this study was to characterize nicotine dependence and nicotine withdrawal symptoms among adolescent smokers and to investigate associations between these key factors and adolescents' readiness to quit smoking. A total of 5624...

Pino, N.; Chiofalo, L., 1967: Cl content of the milk of Ovis aries. For 94 Comiso sheep from 4 flocks in Messina province the mean value with SEM for the Cl content of milk was 98.2 +or- 1.37 mg%.

Chisari, G.; Drago, L.; L.B.e, A.M.; Gismondo, M.R., 1991: The interference of miocamycin on the adhesiveness and coaggregation of the bacteria responsible for periodontopathies. The authors studied the effect miocamycin has on the adherence and coaggregation of pathogenic bacteria in periodontopathy. The data obtained by optic microscopy, after treatment of the strains with doses of miocamycin equal to 1/4 and 1/8 of the...

Latour, N.G.; Reeves, R.E., 1965: An iron-requirement for growth of Entamoeba histolytica in culture, and the antiamebal activity of 7-iodo-8-hydroxy-quinoline-5-sulfonic acid. Entamoeba histolytica were cultivated in a three-amino acid medium to which serum and penicillin-inhibited cells of Bacteroides symbiosus had been added. Omission of iron salts from the medium caused loss of the amebal culture within 2 or 3 transf...

Lange, J.H. de; Boucher, C., 1993: Autecological studies on Audouinia capitata (Bruniaceae). 8. Role of fire in regeneration. In A. capitata the protracted juvenile phase, the longevity of plants and their effective vegetative fire regeneration, are all possibly adaptively linked to poor sexual reproduction. After a fire-free period of >10 years, averages of only 4.7...

Sirridge, M.S.; Shannon, R.; Willoughby, T.L.; Steele, P., 1979: Effects of antiplatelet drugs on platelet function tests. Missouri Medicine 76(4): 212-217

Granjeon., 1906: Etudes sur le landibe. Bul economique Tananarive, 121-127

Hayakawa Y.; Ando T.; Shimazu A.; Seto H.; Otake N., 1985: Latosillan a new differentiation inducer of mouse myeloid leukemia cells m 1 taxonomy fermentation isolation physicochemical properties and biological properties. A new polysaccharide was obtained from the culture filtrate of a bacterium, Alcaligenes latus strain G66A. This polysaccharide induced differentiation of mouse myeloid leukemia cells (M 1), and has been named latosillan.

Tan, B.B.; King, C.M., 1996: Allergic contact dermatitis from Steret swab. Contact Dermatitis 34(1): 62-63